Nrv V v v m

In the ecological literature, the overdispersion parameter is often represented by the symbol k in which case Eq. (3.63) becomes

and we will use this form of the negative binomial distribution in our study of host-parasitoid dynamics and of disease.

From Eq. (3.64) the probability of no events is obtained by setting n = 0

This is a remarkable, if apparently innocuous, formula.

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